Single-player games like NULL SECTOR: LAST PROTOCOL
Below are 8 single-player Steam games similar to NULL SECTOR: LAST PROTOCOL, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like NULL SECTOR: LAST PROTOCOL page.
Ranked picks
- 1
Number 8
Single-player alternative to NULL SECTOR: LAST PROTOCOL — playable solo, no multiplayer required. Shares Action and Indie with NULL SECTOR: LAST PROTOCOL.
SciFi shooter with first-person and third-person views, as well as adventure and story elements. In the game's world, you will face many dangers. Armed creatures resembling humans, drones, robots, and security systems will all try to destroy you.
- 2
HKO: Advanced Survival
Single-player alternative to NULL SECTOR: LAST PROTOCOL — playable solo, no multiplayer required. Shares Action and Indie with NULL SECTOR: LAST PROTOCOL.
An open-world survival experience that combines exploration, suspense, resource management, tactical combat, and cooperative multiplayer. Explore dangerous islands, customize weapons, survive against the Penitents and escape with friends in The Phantom Runner experience.
- 3
Never Be Alone
Single-player alternative to NULL SECTOR: LAST PROTOCOL — playable solo, no multiplayer required. Shares Action and Indie with NULL SECTOR: LAST PROTOCOL.
Never Be Alone is an open-world zombie survival game for solo play and seamless co-op. Explore a world reclaimed by nature, protect a fragile safezone, and uncover the truth behind your forgotten past 10 years after the outbreak.
- 4
VAPORPUNK
Single-player alternative to NULL SECTOR: LAST PROTOCOL — playable solo, no multiplayer required. Shares Action and Indie with NULL SECTOR: LAST PROTOCOL.
VAPORPUNK is an open world journey through a alternate future influenced by aesthetics and music.
- 5
Titan Force
Single-player alternative to NULL SECTOR: LAST PROTOCOL — playable solo, no multiplayer required. Shares Action and Adventure with NULL SECTOR: LAST PROTOCOL.
When a failed experiment unleashes a plague of the undead, civilization collapses overnight. Cities fall. But humanity has one last weapon: the Titans. Climb into the cockpit. Reactivate a war machine from a forgotten age. Turn extinction into vengeance.
- 6
Avium
Single-player alternative to NULL SECTOR: LAST PROTOCOL — playable solo, no multiplayer required. Shares Action and Indie with NULL SECTOR: LAST PROTOCOL.
Avium is a sci-fi action-adventure RPG in a city ruled by those of great cybernetic wealth and influence, such as the Big Four. A Plutocracy, a "banana republic" that keeps its peace with the employment of Vigilantes like you, Diezel, a War-Suit donning, crime-fighting hero with a dark past.
- 7
Until Last Tomorrow
Single-player alternative to NULL SECTOR: LAST PROTOCOL — playable solo, no multiplayer required. Shares Action and Indie with NULL SECTOR: LAST PROTOCOL.
UNTIL LAST TOMORROW is an open world action and adventure game that takes place here in Brazil, in the city of Goiânia, in an extremely dangerous environment, where you will have to survive the pandemic that has taken over the world.
- 8
Outbreak: Shades of Horror
Single-player alternative to NULL SECTOR: LAST PROTOCOL — playable solo, no multiplayer required. Shares Action and Adventure with NULL SECTOR: LAST PROTOCOL.
Cross-platform online 4-player co-op survival horror returns in this early 2000s-inspired, undead apocalyptic nightmare.